Successful Management of a Refractory Orbital Pseudocyst in a Chinese Goose Using Intraorbital Gentamicin Injection.

Intraorbital gentamicin injection effectively resolved refractory orbital swelling in an avian patient.

This case report describes the successful management of a refractory orbital pseudocyst in a 3-year-old male Chinese goose that developed following evisceration surgery for severe corneal injury. The goose presented with recurrent orbital swelling that proved resistant to multiple conventional interventions, including fluid drainage, revision surgeries with placement of Lyostypt and bone cement implants, sinus communication attempts, and Jackson-Pratt drain placement. Diagnostic workup involved physical examination, computed tomography, cytology, histopathology, and bacterial culture. After exhausting standard surgical approaches, an intraorbital gentamicin injection (9 mg/kg) was administered following fluid aspiration. This novel therapeutic approach resulted in complete resolution of the orbital swelling without adverse effects. Six-month follow-up revealed maintained clinical normalcy with no recurrence. The authors propose that gentamicin's cytotoxic effects on secretory tissues may provide an effective treatment option for refractory orbital cases in avian species, though they acknowledge the need for further research to establish safety and efficacy parameters in this population.

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